FILE - This undated photo made available by the Antwerp Institute of Tropical Medicine in Antwerp, Belgium, shows the Ebola virus viewed through an electron microscope. As of mid-2014, Ebola has caused two dozen outbreaks in Africa since the virus first emerged in 1976. (AP Photo/Antwerp Institute of Tropical Medicine)

Photo: Associated Press

FILE - This undated photo made available by the Antwerp Institute...

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Public health advocates stage street theater to attract people to attend an Ebola awareness and prevention event on August 18, 2014 in Monrovia, Liberia.

Photo: John Moore, Getty Images

Public health advocates stage street theater to attract people to...

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A man holds a placard reading "Ebola, go away" as members of the artist group "'Be Kok Spirit'' march to raise awareness on the Ebola virus, on August 19, 2014 in Abidjian. The Ivory Coast announced on August 11 that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation.

Photo: Sia Kambou, AFP/Getty Images

A man holds a placard reading "Ebola, go away" as members of the...

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Workers prepare the new Doctors Without Borders (MSF), Ebola treatment center on August 17, 2014 near Monrovia, Liberia. The facility initially has 120 beds, making it the largest such center for Ebola treatment and isolation in history, and MSF plans to expand it to a 350-bed capacity.

The CDC will test a blood sample drawn at the hospital to detect whether the Ebola virus is present.

Results are expected in a few days, according to county officials.

"In order to protect our patients, staff and physicians, even though infection with the virus is unconfirmed, we are taking the actions recommended by the CDC as a precaution, just as we do for other patients with a suspected infectious disease," said Dr. Stephen Parodi, an infectious disease specialist at Kaiser Permanente North California.

"This includes isolation of the patient in a specially equipped negative pressure room and the use of personal protective equipment by trained staff, coordinated with infectious disease specialists," he said.

Kaiser would not comment on when the patient - it's unknown if male or female - was admitted to the hospital or if the person might have traveled recently to West Africa, where an Ebola outbreak has killed more than 1,100 people.

Earlier this month, two U.S. aid workers who were infected with the deadly virus in Liberia were evacuated to Emory University hospital in Atlanta.

Kent Brantly, 33, a Texas doctor, told Reuters on Friday that he was "recovering in every way" and hoped to be released soon. Nancy Writebol, a 59-year-old missionary from Charlotte, N.C., also remains hospitalized at Emory. Her son said that she, too, is getting better.

Both patients were treated with ZMapp, an experimental drug being developed by Mapp Biopharmaceutical for use with people infected with Ebola virus.

Also earlier this month, a man who had traveled to West Africa arrived at the emergency room at Mount Sinai Hospital in New York City with a high fever and stomachache. The hospital tested him for Ebola, but the city's health department said he was "unlikely" to have the virus.

The CDC did not immediately return calls. The state Department of Public Health issued a statement late Tuesday, calling the possible case out of Sacramento "low-risk. Testing is being done, officials said, "out of an abundance of caution."

There is currently no confirmed cases of Ebola in the state, and "the risk of the spread of Ebola in California is low."

"State and local public health officials in California are monitoring the situation closely and taking steps to keep Californians safe," the statement read. "Our advanced health care system has appropriate protocols in place to prevent the spread of this often deadly disease."